The Naya Smart Breast Pump user manual indicates that you need to have the puck lower than the reservoir while you are filling it up; we suggest placing the puck in the sink while you fill it up under the faucet. A flange can hold about 1/3 of a cup of water, which is about 3 oz.
It's ok if everything on the flange assembly gets wet, though you should be sure to dry the attachments before attaching them to the pump. Too much air in your tubing or reservoir will affect suction on your pump.
To make sure you don't have air bubbles in the tubing, pinch the tube as you fill it with water. It should take about 30-60 seconds to fill the tubing.
Please note: You don’t have to empty and refill the flanges after each use! If you notice more air in your flange reservoir after using the pump, simply top off the water level.
You’ll only need to empty your flanges and let air dry every two weeks. After each use you’ll need to clean the housing, bellows and valve with warm soapy water. DO NOT place any of the flange parts in the dishwasher.
Attaching your puck to the pump you can top off the water level of your flange with the pucks attached to the Naya Smart Breast Pump, but DO NOT drain and refill flange while the puck is attached to the pump. Doing so may cause water damage to the Naya Smart Breast Pump.